What is the CVSS score of CVE-2026-2460?

CVE-2026-2460 has a CVSS 3.1 base score of 8.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.0%.

Which versions of Reb500 Firmware are affected by CVE-2026-2460?

A high-severity vulnerability in REB500 allows authenticated users with basic system access to view and modify files and directories they should not have permission to access, creating significant…

How to fix or mitigate CVE-2026-2460?

Within 24 hours: Inventory all REB500 deployments, identify users with low-privilege accounts, and disable DAC protocol access if operationally feasible. Within 7 days: Implement network segmentation to restrict REB500 access to trusted administrative networks only, and enable enhanced logging on all DAC protocol activities for forensic review. Within 30 days: Contact the vendor for patch availability, plan system upgrades, and conduct a compliance audit to assess unauthorized access that may have already occurred.

Reb500 Firmware CVE-2026-2460

HIGH

Privilege Defined With Unsafe Actions (CWE-267)

2026-02-24 cybersecurity@hitachienergy.com

Information Disclosure Reb500 Firmware

8.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.1 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 24, 2026 - 14:16 nvd

HIGH 8.1

DescriptionCVE.org

A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the content of directories by using the DAC protocol that the user is not authorized to do so.

AnalysisAI

Improper access control in REB500 firmware allows authenticated users with low privileges to read and modify unauthorized directories via the DAC protocol. An attacker with valid credentials can escalate their file system access beyond their intended permissions, potentially compromising sensitive data or system integrity. No patch is currently available for this vulnerability.

Technical ContextAI

Affects Reb500 Firmware. A vulnerability exists in REB500 for an authenticated user with low-level privileges to access and alter the content of directories by using the DAC protocol that the user is not authorized to do so.